Home / 75,757.12-113,559.12-31,322.56

Finding the Fourth Proportional to 75,757.12, 113,559.12 and 31,322.56

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Solution

The fourth proportional to 75,757.12, 113,559.12 and 31,322.56 is: 46,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,757.12 : 113,559.12 = 31,322.56 : x
  2. Step 2: Convert to fraction form
    75,757.12/113,559.12 = 31,322.56/x
  3. Step 3: Cross multiply
    75,757.12x = 113,559.12 × 31,322.56
  4. Step 4: Simplify right side
    75,757.12x = 3,556,962,349.75
  5. Step 5: Solve for x
    x = 3,556,962,349.75/75,757.12
  6. Step 6: Final answer
    x = 46,952.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.